The new and unique Hydra Cap from Night Quill is an ultra wide cap designed to give you more output (wider lines) from ultra high pressure cans like The Mad Maxx and Montana Ultrawide 750ml . This "female" nozzle fits only onto the large  4mm male valve ultra-wide cans.  

Get your fill done in half the time without as much mess.

Coverage: 40-60 CM wide even coverage.